We'll, it's cool enough to forward along. Gives you the willies.
My BIL did take me up on some hillside traverse trails like that that were REALLY narrow, with a lot of rock outcroppings you had to go over. You just have to keep moving. The problem is if you make a mistake, you go off the trail and down the embankment. It's one thing on a 50lb mountain bike, a whole 'nother with a 250lb dirtbike. Some of the latter get left in the bush till you can get a retrieval team going.